“Boeing and SpaceX continue to make progress developing their crew transportation systems, but both contractors have further delayed the certification milestone to early 2019,” the report said. “Without a viable contingency option for ensuring uninterrupted access to the ISS in http://pokeroml.pacificpeonies.com the event of further commercial crew delays, we concluded that NASA was at risk of not being able to maximize the return on its multibillion dollar investment in the space station,” it added. Boeing said it http://vegasonlinexbe.nightsgarden.com was aiming for test flights this year.